Portable scaffold table



April 26, 1955 E. BARTA ETAL 2,707,090

PORTABLE scAFFoLD TABLE Filed July 31, 1953 ,I JNVENTORS,

"f $2019?? all e v ATTORNEYS United States Patent O PORTABLE SCAFFOLD TABLE Emil Barta and Paul Vander Wiel, Sioux City, Iowa Application July 31, 1953, Serial No. 371,447

3 Claims. (Cl. 248-129) This invention relates to a paint bucket holder or support, and more particularly to a portable paint bucket holder for use with a scaffold.

The object of the invention is to provide a portable paint bucket holder which is adapted to be connected to a scaffold, the present invention being adjustable so that it can be mounted on scaffolds of' different thicknesses or widths.

Another object of the invention is to provide a traveling holder for a paint bucket for use on a scaffold, there being a mechanism provided for holding the table immobile in its various adjusted positions.

A further object of the invention is to provide a paint bucket holder for use with a scaffold which is extremely simple and inexpensive to manufacture.

Other objects and advantages will be apparent during the course of the following description.

ln the accompanying drawings, forming a part of this application, and in which like numerals are used to designate like parts throughout the same:

Figure l is an end elevational view of the table of the present invention.

Figure 2 is a top plan view of the table of the present invention.

Figure 3 is a sectional view taken on the line 3--3 of Figure l.

Figure 4 is a sectional view taken on the line 4 4 of Figure 3.

Figure 5 is a sectional View taken on the line 5--5 of Figure 2.

Figure 6 is a sectional View taken on the line 6-6 of Figure 2.

Referring in detail to the drawings, the numeral 10 designates a portion of a conventional scaffold (broken lines, Figure l), and the present invention is directed to a portable table for supporting a paint bucket, and a portable table is adapted to be used with the scaffold 10.

The portable table includes a pair of spaced parallel vertically disposed plates 11 and 12 which are mounted for movement towards and away from each other so that they can be used with scaffolds of different widths. Bolt and nut assemblies 14 serve to connect a first pair of upper wheels 15 to the plate 11, and bolt and nut assemblies 16 connect a similar pair of wheels 17 to the other plate 12. Each of the plates 11 and 12 may be provided with a pair of slots 18. Figure 6, and extending through the slots 18 is a bolt 19 which has a nut 20 arranged in engagement therewith. Journaled on the bolt 19 is a lower wheel 22 which may have ball bearings 21 therein. The slots 18 may be arranged in the plate 11, and the other plate 12 may have similar opposed slots 23, Figure 3. A bolt 24 may extend through each of the slots 23 in the plate 12, and a wheel 25 is mounted on each of the bolts 24. By loosening the nuts on the bolts 24 and 19, the lower Wheels 25 or 22 can be shifted toward and away from the upper wheels 15 and 17 so that scaifolds 10 of different thicknesses can be accommodated. After the lower wheels have been adjusted to the desired positions the nuts can again be tightened to maintain the wheels immobile in their adjusted positions.

Secured to the outer surface of the plate 12 in any suitable manner, as for example by welding, is a plate 26, and a holder 27 is secured to the plate or block 26. An arm 28 is adjustably mounted in a sleeve 1, and the sleeve 1 is connected to a body member 41 by braces 2 and 3. A set screw 29 is provided for maintaining the arm 28 immobile in its various adjusted positions. The

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arm 28 includes a horizontally disposed portion 30 which provides a support for a paint bucket holder 32, and the holder 32 is provided with a rim 33 for insuring that the paint bucket does not accidentally become dislodged therefrom. A set screw 31 is provided for securing the holder 32 to the horizontal portion 30, Figure 4. By loosening the set screw 29 the arm 28 carrying the paint bucket holder 32 can be raised or lowered vertically so that the paint bucket can be supported in any desired elevation. A set screw 4 extends through member 27 and engages sleeve 1.

Secured to the inner surface of the plate 11 is a plurality of hollow guide members 34, and rods 35 are secured to the inner surface of the other plate 12, the rods 35 being telescopically or slidably mounted in the guide members 34.

A means is provided for adjusting the position of the plates 11 and 12 so that the plates 11 and 12 can be mounted on different scaffolds having various or different widths. This means comprises a sleeve 36 which is secured to the inner surface of the plate 11, and a threaded shaft or rod 38 extends through a nut 37 and into engagement with the sleeve 36. A knurled knob 39 is secured to the outer end of the shaft 30 by means of a pin 4t), so that by rotating the knob 39 the shaft 38 can be rotated to thereby move the plates 11 and 12 towards and away from each other. A means is provided for maintaining the table immobile in its various adjusted positions. This means comprises the body member 41 which is secured to the plate 12 and to a block 42, and slidably or adjustably mounted in the body member 41 is a rod or arm 43 which has a hand grip 44 on its upper end.. The lower end ot the arm 43 is pointed as at 45 for engagement with the scaffold 10, and a coil spring 46 is provided for normally urging the pointed end 45 into engagement with the scaffold 10. When the table is to be shifted or moved along the scaffold 10, the hand grip 44 can be lifted to thereby raise the pointed end 44 out of engagement with the scaffold 10. A slot 47 is arranged in the upper p0rtion of the body member 41, Figure 4, whereby the hand grip 44 can be raised and rotated and then rested or supported on the top end of the body member 41 so as to maintain the pointed end 45 out of engagement with the scaffold 10 while the device is being shifted.

Secured to the other plate 11 is a holder 48 which has a set screw 49 arranged therein. The holder 48 is adapted to support the arm 28 when the paint bucket holder 32 is to be supported in the position shown in broken lines in Figure 1 instead of the position shown in solid lines.

From the foregoing it is apparent that a portable table has been provided for use with a scaffold such as the scaifold 10 whereby a paint bucket can be supported in the holder 32. The pointed end 45 is urged into the scaffold 10 by the spring 46 so that the table will not accidentally move during use. The paint bucket is adapted to be supported in the holder 32 and the plates 11 and 12 can be moved toward and away from each other by rotating the knob 39 so that it will fit on different sizes of scaffolds. Also, the lower wheels can be adjusted with respect to the upper wheels so that the device will fit on scaffolds of different thicknesses.

The plank 10 of the scaffold fits between the wheels as shown in Figure l and the four lower wheels can be raised and lowered to meet the requirements of various board thicknesses. The width of the entire mechanism can be adjusted to tit different planks 10 by turning the hand wheel 39. The rods 35 and guide members 34 serve to strengthen the mechanism and also insure smoother movement as the width is changed. The paint bucket sets on the can holder 32 which is round and is provided with a rim 33 to prevent the paint bucket from slipping. The holder 32 can be moved and replaced by a rectangular holder in the event that the painter is using a roller. As shown in Figure 1 in broken lines, the paint bucket holder 32 can be supported on the opposite side of the plank if desired. The arm or rod 43 can be placed in either of two positions. When in its raised position the rim 44 will rest on the top of the member 41 so that the pointed end 45 will not act as a brake. When the parts are in the position shown in Figure 4 the spring 46 causes the pointed end 45 to dig into the plank 10 and act as a brake. A sleeve 5 is adjustably supported in the holder 48 for at times supporting the arm 28, and a set screw 49 extends through the holder 48 `and into engagement with the sleeve 5. A set screw 6 extends through sleeve 5 for engagement with the arm 2S.

Each of the wheels 15, 17, 22 and 25 has a flange formed integral therewith or secured thereto, and these flanges held to guide the device during its movement.

By means of the adjustable features of the present invention the device can be adjusted to the height of the painter so that the painter or other person can conveniently use the device.

Furthermore, the device can be used for supporting wall washing equipment and both of the arms can be removed so that only the base remains on the scaffold for easy moving and transferring from one job to another. Also, the parts can be disassembled or dismantled without the necessity of using a wrench or other tool.

We claim:

l. A portable scaffold table comprising a first and second plate arranged in spaced parallel relation with respect to each other, a pair of upper wheels extending inwardly from each of said plates, a pair of lower wheels adjustably connected Vto each of said plates, a block secured to the outer surface of said first plate, a holder secured to said block, -a plurality of hollow horizontally disposed guide members secured to the inner surface of said first plate, rods secured to the inner surface of said second plate and slidably extending into said guide members, a sleeve extending inwardly from said first plate, a threaded shaft arranged in engagement with said sleeve, a knurled knob connected to the outer end of said shaft for rotating the latter, a block secured to the second plate, a holder secured to said last named block, an arm having a vertically disposed portion adjustably mounted in said last named holder, and a horizontally disposed portion extending from the upper end of said vertically disposed portion, there being a paint bucket support connected to said horizontally disposed portion, and means for maintaining said table immobile in its adjusted positions.

2. The apparatus as described in claim l, wherein said means comprises a body member secured to said second plate, a bar slidably mounted insaid body member and including a hand grip on its upper end, the lower end of said bar being pointed, and a coil spring circumposed on said bar for urging said pointed end into engagement with the scaffold.

3. A portable scaffold table comprising a lirst and second plate, a pair of upper wheels extending from each of said plates, a pair of lower wheels adjustably connected to each of said plates, a block secured to said first plate, a holder secured to said block, a plurality of hollow horizontally disposed guide members secured to said first plate, rods secured to said second plate and slidably extending into said guide members, a sleeve extending inwardly from said first plate, a shaft arranged in engagement with said sleeve, a knob connected to the outer end of said shaft for rotating the latter, a block secured to the second plate, a holder secured to said last named block, an arm having a vertically disposed portion adjustably mounted in said last named holder, and a horizontally disposed portion extending from the upper end of said vertically disposed portion, there being a paint bucket support connected to said horizontally disposed portion, and means for maintaining said table immobile in its adjusted positions.

References Cited in the file of this patent UNITED STATES PATENTS 956,696 Frost May 3, 1910 1,336,231 Hosch Apr. 6, 1920 2,140,828 Carle Dec. 20, 1938 2,488,633 Linder et al. a- Nov. 22, 1949 2,566,962 Ramsey Sept. 4, 1951 

